JP6785753B2 - Unit to be processed - Google Patents

Description

[Description of related applications]
The present invention is based on the Japanese patent application: Japanese Patent Application No. 2015-0565669 (filed on March 19, 2015), and the entire contents of the application shall be incorporated and described in this document by citation.
The present invention relates to a machined unit having a workpiece to be machined.

When a workpiece such as ceramic or metal is machined into a three-dimensional shape, the machining process is performed while holding the end of the unit to be machined. This work piece is also called a "blank". For example, in the dental industry, the outer edge region of the disk-shaped zirconia to be processed is held by a processing device, and the prosthesis is machined.

Therefore, in the method for manufacturing a dental prosthesis material described in Patent Document 1, a ring is attached to the outer edge of the blank with an adhesive, and the ring is fixed to the chuck of the processing apparatus to fix the blank to the processing apparatus.

International Publication WO95 / 30382

The following analysis is given from the point of view of the present invention.

In the processing of a disk-shaped workpiece (blank) as described in Patent Document 1, a state in which the target workpiece is connected to the outer edge while the outer edge of the workpiece remains in a frame shape. Carve out with. In order to utilize the work piece without waste, the work piece is processed up to the immediate vicinity of its outer edge. That is, the remaining outer edge portion of the work piece after processing becomes thin. Since the strength of the thinned outer edge portion is low, even a slight impact may cause damage or the prosthesis formed by connecting to the thinned portion may fall off. FIG. 42 shows a photograph of the work piece after processing. The work piece has fallen off at the part marked with a circle.

In addition, the mounting position of the workpiece to the processing device may shift in the lateral direction. In this case, on the outer edge of the work piece after the processing, a portion thinner than expected is formed by the amount of deviation. Then, the same problem as described above will occur.

On the other hand, if the portion held by the processing apparatus (the portion corresponding to the ring) is manufactured as a part of the workpiece without using the ring described in Patent Document 1, the diameter becomes large, so that the raw material of the workpiece is used. Will be used a lot. If the cost of the workpiece is higher than the cost of the ring, the production volume of the work piece does not change and the manufacturing cost increases.

Therefore, it is desired to suppress an increase in manufacturing cost while increasing the strength of the outer edge portion of the work piece after the processing.

According to the first aspect of the present invention, the work unit includes a work piece having a protrusion and a holding member arranged on at least a part of the outside of the protrusion.
As a modification of the first viewpoint, the machined unit includes a work piece having a protrusion and a holding member continuously arranged on the outside of the protrusion, and the protrusion is the work piece. The work piece is integrated with the same material as the first surface, the second surface arranged on the side opposite to the first surface, and between the first surface and the second surface. It has an outer peripheral portion, and the protruding portion is arranged on the outer peripheral portion, and the protruding portion is continuously arranged along the outer peripheral portion of the workpiece.
As another modification of the first viewpoint, a work piece having a protrusion and a holding member continuously arranged on the outside of the protrusion are provided, and the protrusion is made of the same material as the work piece. The work piece has a first surface, a second surface arranged on the side opposite to the first surface, and an outer peripheral portion between the first surface and the second surface. The protruding portion is arranged on the outer peripheral portion, the protruding portion is continuously arranged along the outer peripheral portion of the workpiece, and the holding member is the holding member of the workpiece. The holding member is not arranged outside the portion other than the protruding portion on the outer peripheral portion, and is configured to be held by the processing apparatus.

By providing the protruding portion, the protruding portion remains on the outer edge portion of the work piece after the processing, so that the strength of the outer edge portion can be increased. As a result, it is possible to suppress damage caused by a decrease in the strength of the outer edge portion.

By providing the holding member, the size (for example, diameter) of the work piece can be reduced by the amount corresponding to the width of the holding member, so that the amount of raw material used for the work piece can be reduced. As a result, an increase in manufacturing cost can be suppressed.

The schematic plan view of the unit to be processed which concerns on 1st Embodiment of this disclosure. FIG. 2 is a schematic cross-sectional view of the unit to be machined in line II-II of FIG. Schematic partial cross-sectional view of the unit to be machined according to the first embodiment of the present disclosure. The schematic cross-sectional view after processing of the unit to be processed which concerns on 1st Embodiment of this disclosure. The schematic partial sectional view after processing of the unit to be processed which concerns on 1st Embodiment of this disclosure. Schematic partial cross-sectional view of the unit to be machined according to the second embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the third embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the fourth embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the fifth embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the sixth embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the seventh embodiment of the present disclosure. Schematic partial plan view of the unit to be processed according to the seventh embodiment of the present disclosure. FIG. 6 is a schematic partial sectional view of a unit to be processed according to the 14th embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the ninth embodiment of the present disclosure. The schematic plan view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic plan view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic plan view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic plan view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic cross-sectional view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic cross-sectional view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic cross-sectional view which shows the example of the 1st positioning part and the 2nd positioning part. The schematic cross-sectional view which shows the example of the 1st positioning part and the 2nd positioning part. Schematic partial cross-sectional view of the unit to be machined according to the tenth embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the eleventh embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the twelfth embodiment of the present disclosure. Schematic partial plan view of the unit to be machined according to the twelfth embodiment of the present disclosure. Schematic partial cross-sectional view of the unit to be machined according to the thirteenth embodiment of the present disclosure. The schematic plan view of the unit to be processed which concerns on 11th Embodiment of this disclosure. FIG. 2 is a schematic cross-sectional view of the unit to be machined along the line XXVIII-XXVIII of FIG. 28. The schematic plan view of the workpiece which shows the example of the plan shape of a section. The schematic plan view of the workpiece which shows the example of the plan shape of a section. The schematic plan view of the workpiece which shows the example of the plan shape of a section. The schematic plan view of the workpiece which shows the example of the plan shape of a section. The schematic plan view of the workpiece which shows another form of the workpiece which concerns on 11th Embodiment of this disclosure. The schematic side view of the workpiece which shows another form of the workpiece which concerns on 11th Embodiment of this disclosure. The schematic plan view of the unit to be processed which concerns on the twelfth embodiment of this disclosure. The schematic plan view of the section unit which concerns on the twelfth embodiment of this disclosure. FIG. 3 is a schematic plan view of a compartment unit having a form different from that shown in FIG. 37. The schematic plan view of the unit to be processed which concerns on 13th Embodiment of this disclosure. The schematic plan view of the dummy work piece which concerns on 13th Embodiment of this disclosure. The schematic plan view of the unit to be processed which concerns on 13th Embodiment of this disclosure. A photograph of the work piece after processing to explain the background technology.

In the following description, the drawing reference reference numerals are added for the purpose of understanding the invention, and are not intended to be limited to the illustrated aspects. In each embodiment, the same elements are designated by the same reference numerals. The dimensions and dimensional ratios of the drawings are not intended to be limited to the illustrated aspects.

Preferred forms of each of the above viewpoints are described below.

According to the preferred form of the first viewpoint, the workpiece has a plate-like shape. The protruding portion protrudes from the side surface of the work piece. The holding member is arranged at least in the protruding direction of the protruding portion.

According to the preferred form of the first viewpoint, the workpiece has a first surface, a second surface arranged on the side opposite to the first surface, and an outer peripheral portion between the first surface and the second surface. Have. The protruding portion is arranged on the outer peripheral portion.

According to the preferred embodiment of the first viewpoint, the protruding portions are continuously arranged along the outer peripheral portion of the workpiece. The holding member has a ring shape.

According to the preferred form of the first viewpoint, the protrusions are a third surface facing the same direction as the first surface, a fourth surface facing the same direction as the second surface, and a third surface and a fourth surface. It has a fifth surface connecting with and. The holding member covers at least a part of the fifth surface.

According to the preferred embodiment of the first viewpoint, the holding member has a first surface facing the same direction as the third surface of the protrusion and a second surface facing the same direction as the fourth surface of the protrusion. Have.

According to the preferred form of the first viewpoint, the first surface of the holding member forms the same surface as the third surface of the protruding portion, or the first surface side of the workpiece is closer to the third surface of the protruding portion. Exists in.

According to the preferred form of the first viewpoint, the second surface of the holding member forms the same surface as the fourth surface of the protruding portion, or is closer to the second surface of the workpiece than the fourth surface of the protruding portion. Exists in.

According to the preferred embodiment of the first viewpoint, the holding member further covers at least a part of the third and fourth surfaces of the protrusion.

According to the preferred embodiment of the first viewpoint, the workpiece has at least one first positioning portion at a portion of the protruding portion facing the holding member. The holding member has a second positioning portion that engages with at least a portion of the first positioning portion.

According to the preferred form of the first viewpoint, the first positioning portion has a concave or convex shape. The second positioning portion has a shape that fits or engages with the first positioning portion. At least a part of one of the first positioning part and the second positioning part fits or engages with at least a part of the other.

According to the preferred form of the first viewpoint, one of the first positioning portion and the second positioning portion has a concave shape and the other has a convex shape. The width of the convex shape is equal to or larger than the width of the concave shape. A part of the convex shape is inserted into the concave shape.

According to the preferred embodiment of the first viewpoint, the first positioning portion is arranged over the entire circumference of the workpiece.

According to the preferred form of the first viewpoint, the first positioning portion or the second positioning portion has a groove shape.

According to the preferred form of the first viewpoint, the first positioning portion or the second positioning portion has a conical or columnar shape.

According to the preferred embodiment of the first viewpoint, the holding member is composed of two or more parts.

According to the preferred embodiment of the first viewpoint, each part of the holding member has a concave portion or a convex portion, respectively. Each component is arranged so as to fit the concave portion and the convex portion.

According to the preferred form of the first viewpoint, the workpiece is ceramic, metal or resin.

According to the preferred form of the first viewpoint, the work piece is a calcined body in which the zirconia crystal particles have not been completely sintered.

According to the preferred embodiment of the first viewpoint, the holding member is bonded to the workpiece with an adhesive.

According to the preferred form of the first viewpoint, the holding member and the workpiece are in direct contact with each other.

According to the preferred form of the first viewpoint, the holding member is plastic.

According to the preferred embodiment of the first viewpoint, the thickness of the protruding portion and the thickness of the holding member are substantially the same.

According to the preferred embodiment of the first viewpoint, the width of the protruding portion in the protruding direction is 0.3 mm to 2 mm.

According to the preferred form of the first viewpoint, the protruding portion is arranged at the center in the thickness direction of the workpiece.

According to the preferred form of the first viewpoint, the workpiece is formed by processing the workpiece and has a workpiece connected to a protruding portion or an outer edge portion.

The unit to be processed according to the first embodiment of the present disclosure will be described. FIG. 1 shows a schematic plan view of the unit to be processed. FIG. 2 shows a schematic cross-sectional view of the unit to be processed in line II-II of FIG. FIG. 3 shows a schematic partial cross-sectional view of the protruding portion and the holding member portion.

The work unit 10 includes a work piece 1 and a holding member 2 arranged on at least a part of a side wall of the work piece 1. The workpiece 1 is processed by, for example, a processing apparatus. For example, in the field of dentistry, a dental product is produced from the workpiece 1. Examples of dental products include prosthetic materials such as ceramic frames and fulcanture crowns. The dental prosthesis preferably has a crown shape. In addition, examples of dental products include orthodontic products (for example, orthodontic brackets) and dental implant products (for example, dental implant abutments). The holding member 2 assists in holding or fixing the machined unit 10 to the machining apparatus. For example, when the machined unit is held or fixed to the machined device, at least the holding member 2 of the machined unit 10 is held by the machined device.

The work piece 1 has a first surface 1a to be a surface to be processed and a second surface 1b opposite to the first surface 1a. It is preferable that the first surface 1a and the second surface 1b are parallel or substantially parallel. The workpiece 1 preferably has a flat plate shape. In the form shown in FIG. 1, the work unit 10 and the work piece 1 have a circular planar shape, but are not limited to a circular shape and have a planar shape such as an ellipse or a polygon. You may.

The work piece 1 is formed on the outer peripheral portion 1g along at least a part of the side wall, that is, on the outer edge of the first surface 1a and the second surface 1b or between the first surface 1a and the second surface 1b. It has a protruding portion 1c for holding the 10 in a processing apparatus. The protruding portion 1c is preferably a portion for holding the unit 10 to be processed in the processing apparatus. The protrusion 1c is preferably in a region that is not processed by the processing apparatus. It is preferable that the protruding portion 1c is continuously arranged over the entire circumference of the outer peripheral portion 1g of the workpiece 1. That is, the protruding portion 1c preferably has a ring shape or an annular shape. The protruding portion 1c can have a form (protruding portion) that protrudes from the side surface of the workpiece 1. For example, the projecting portion 1c projects in a direction substantially perpendicular to the first surface 1a and the second surface 1b between the first surface 1a and the second surface 1b of the workpiece 1. Further, the protruding portion 1c is located on the outer peripheral portion 1g of the workpiece 1, and has a form in which the end portion of the workpiece 1 is thinner than the other portions.

The protrusion 1c can have a third surface 1d facing the same direction as the first surface 1a and a fourth surface 1e facing the same direction as the second surface 1b. The protruding portion 1c can have a fifth surface 1f connecting the third surface 1d and the fourth surface 1e. The third surface 1d and the fourth surface 1e are preferably parallel or substantially parallel. The third surface 1d and the first surface 1a are preferably parallel or substantially parallel. The fourth surface 1e and the second surface 1b are preferably parallel or substantially parallel. The third surface 1d and the fifth surface 1f are preferably vertical or substantially vertical. The fourth surface 1e and the fifth surface 1f are preferably vertical or substantially vertical. The first surface 1a, the second surface 1b, and the fifth surface 1f are preferably vertical or substantially vertical. It is preferable that the thickness t2 of the protruding portion 1c is thinner than the total thickness t1 of the workpiece 1. That is, it is preferable that the first surface 1a and the third surface 1d form a step. It is preferable that the second surface 1b and the fourth surface 1e form a step. As a result, when the unit 10 to be machined is fixed to the machining apparatus, the alignment becomes easy. The first surface 1a and the third surface 1d may form the same surface. Further, the second surface 1b and the fourth surface 1e may form the same surface.

The thickness t2 of the protruding portion 1c is preferably 1 mm or more, more preferably 2 mm or more, and further preferably 4 mm or more. This is to hold the machined unit 10 during machining and to reinforce the machined body 1 after machining.

The width w1 of the protruding portion 1c is preferably 2 mm or less, more preferably 1.7 mm or less, and further preferably 1.5 mm or less. This is because if the width w1 of the protruding portion 1c is too large, the wasted portion of the workpiece 1 becomes large. The width w1 of the protruding portion 1c is preferably 0.3 mm or more, preferably 0.4 mm or more, more preferably 0.6 mm or more, and further preferably 0.8 mm or more. The protruding portion 1c has an action of reinforcing the workpiece 1 after processing. Therefore, in order to reinforce the work piece 1 after processing, the protrusion 1c needs to have a certain width.

The protruding portion 1c is preferably arranged at the center of the workpiece 1 in the thickness direction of the workpiece 1. That is, it is preferable that the center of the protruding portion 1c in the thickness direction overlaps with the center of the workpiece 1 in the thickness direction. This facilitates the alignment when the unit 10 to be machined is set in the machining apparatus.

The work unit 10 is preferably symmetrical with respect to the extending direction of the first surface 1a and the second surface 1b of the work piece 1. For example, it is preferable that both the first surface 1a and the second surface 1b of the workpiece 1 can be set in the processing apparatus toward the processing tool (usually the upper side).

The overall size d2 of the work piece 1, the size d3 of the first surface 1a and the second surface 1b to be the work surface of the work piece 1, and the thickness t1 of the work piece 1 are determined according to the purpose. It can be set as appropriate.

As the material of the workpiece 1, for example, ceramics, metals, resins and the like can be used. Examples of ceramics include materials containing at least one of zirconia, alumina and crystallized glass. Examples of metals include titanium, titanium alloys and the like. Examples of the resin include acrylic resin, methacrylic resin, ABS (acrylonitrile butadiene styrene) resin, polycarbonate, polypropylene, polystyrene, polyester, polyetherketone, Teflon (registered trademark) and the like. Further, a composite material (composite resin) in which an inorganic filler is filled in these resins can also be mentioned as an example of the resin.

When the work piece 1 is used for cutting out a dental product, for example, the work piece 1 is a zirconia calcined body that has been calcined so that the zirconia crystal particles are not completely sintered. Can be done. The zirconia calcined product contains a stabilizer that suppresses the phase transition of zirconia and the crystal phase of zirconia. For example, the stabilizer suppresses the phase transition of the crystal phase of the sintered body from tetragonal to monoclinic when it becomes a sintered body. As the stabilizer, for example, calcium oxide (CaO), magnesium oxide (MgO), yttrium oxide _{(Y 2 O} 3), oxides such as cerium oxide (CeO ₂₎ and the like. It is preferable to add the stabilizer in an amount capable of partially stabilizing the tetragonal zirconia particles. For example, when yttria is used as a stabilizer, the content of yttria is preferably 2 mol% to 8 mol%, preferably 2.5 mol% to 6.5 mol%, based on the total mol number of zirconia and yttria. And more preferable. If the content of the stabilizer is increased too much, the bending strength and fracture toughness will decrease even if the phase transition can be suppressed. On the other hand, if the content of the stabilizer is too low, even if the decrease in bending strength and fracture toughness can be suppressed, the suppression of the progress of the phase transition is insufficient. Zirconia partially stabilized by adding a stabilizer is called partially stabilized zirconia. The content of the stabilizer in the zirconia sintered body can be measured by, for example, inductively coupled plasma (ICP) emission spectroscopic analysis, fluorescent X-ray analysis, or the like.

The holding member 2 is arranged at least a part of the outside of the protrusion 1c. The holding member 2 is preferably arranged at least in the protruding direction of the protruding portion 1c. It is preferable that the holding member 2 is continuously arranged along the fifth surface 1f corresponding to the side surface of the protruding portion 1c. That is, the holding member 2 can cover at least a part of the fifth surface 1f of the protrusion 1c. The holding member 2 preferably has a shape corresponding to the planar shape of the workpiece 1. The holding member 2 can have, for example, a ring shape, an annular shape, a tubular shape, or a ring shape. It is preferable that the holding member 2 is arranged over the entire circumference of the side wall of the workpiece 1. There may be a gap between the holding member 2 and the workpiece 1.

The holding member 2 can have a first surface 2a facing the same direction as the first surface 1a of the workpiece 1, and a second surface 2b facing the same direction as the second surface 1b of the workpiece 1. .. The first surface 2a of the holding member 2 can face in the same direction as the third surface 1d of the workpiece 1. The second surface 2b of the holding member 2 can face in the same direction as the fourth surface 1e of the workpiece 1. It is preferable that the first surface 2a of the holding member 2 and the third surface 1d of the workpiece 1 are parallel or substantially parallel. It is preferable that the second surface 2b of the holding member 2 and the fourth surface 1e of the workpiece 1 are parallel or substantially parallel.

The third surface 1d of the protrusion 1c and the first surface 2a of the holding member 2 can form the same surface. Similarly, the fourth surface 1e of the protrusion 1c and the second surface 2b of the holding member 2 can form the same surface. This is so that the holding member 2 and the protruding portion 1c completely overlap each other. In this case, the thickness t3 of the holding member 2 is the same as the thickness t2 of the protruding portion 1c. Alternatively, the first surface 2a of the holding member 2 can exist on the first surface 1a side of the workpiece 1 with respect to the third surface 1d of the protruding portion 1c. Similarly, the second surface 2b of the holding member 2 can exist on the second surface 1b side of the workpiece 1 with respect to the fourth surface 1e of the protrusion 1c. This is to make it easier to hold the unit 10 to be machined in the machining apparatus. In this case, the thickness t3 of the holding member 2 is thicker than the thickness t2 of the protruding portion 1c.

The thickness t3 of the holding member 2 may be any thickness as long as it does not interfere with the processing of the workpiece 1. The thickness t3 of the holding member 2 is preferably thinner than the thickness t1 of the workpiece 1, and more preferably equal to the thickness t2 of the protruding portion 1c. This is to make it easier to hold the unit 10 to be machined in the machining apparatus. The thickness t3 of the holding member 2 is preferably 1 mm or more, more preferably 2 mm or more, and further preferably 4 mm or more. This is to maintain the strength of holding by the processing device.

It is preferable that the protruding portion 1c and the holding member 2 are held together in the processing apparatus. Therefore, it is preferable that the width w2 of the holding member 2 has a width that can be held by the processing apparatus together with the width w1 of the protruding portion 1c.

In the first embodiment, the holding member 2 is attached to the workpiece 1 without using an adhesive. At least a part of the holding member 2 and the fifth surface 1f are in direct contact with each other. The third surface (inner peripheral portion) 2c corresponding to the inner surface of the holding member 2 preferably has a shape corresponding to the fifth surface 1f of the workpiece 1. For example, in the cross-sectional view shown in FIG. 2, when the fifth surface 1f of the workpiece 1 is flat, it is preferable that the third surface 2c of the holding member 2 is also flat. This is because the adhesion between the workpiece 1 and the holding member 2 is improved.

The material of the holding member 2 is preferably a material that does not significantly deform due to the pressure at the time of fixing when fixed to the processing apparatus. Further, the material of the holding member 2 is preferably a material that can be attached to the workpiece 1 by a method as described below. As the material of the holding member 2, for example, engineering plastic, polypropylene, polystyrene, acrylic resin, ABS (acrylonitrile butadiene styrene) resin, polycarbonate, polyester, polyether ketone, Teflon (registered trademark), metal, wood and the like can be used. Can be done. Further, the example of the resin can also include a composite material (composite resin) in which an inorganic filler is filled in the resin.

Information can be added to the holding member 2. For example, information can be provided at a visible position of the holding member 2 by a symbol such as a character or a bar code by printing, engraving, a sticker, or the like. The information includes, for example, lot number, color tone (shade), shrinkage rate (division), distinction between top and bottom, and the like.

A method of manufacturing the unit to be processed according to the first embodiment will be described.

First, the workpiece 1 is manufactured. Partially stabilized zirconia powder, which is zirconia particles containing a stabilizer, is prepared. The type and concentration of the stabilizer can be appropriately selected. The particle size and particle size distribution of the zirconia crystal particles are appropriately selected. As a method for adding the stabilizer to the zirconia particles, a suitable method such as a hydrolysis method, a neutralization coprecipitation method, an alkoxide method, or a solid phase method can be appropriately selected. If necessary, additives are added to the prepared partially stabilized zirconia powder and mixed. If wet mixing is used, the composition is dried.

Next, the composition is pressure-molded into a predetermined shape. For example, the composition is pressure-molded into the shape of the workpiece 1. As the pressure molding method, a suitable method can be appropriately selected. The pressurizing pressure can be, for example, 20 MPa or more. After the pressure molding, the sintering composition may be further subjected to CIP (Cold Isostatic Pressing) at a pressure of, for example, 150 MPa or more. After the pressure molding, the molded body may be processed into a desired shape by cutting, grinding or the like.

Next, the molded product is fired at a temperature at which the zirconia particles are not sintered to form a calcined product. The calcining conditions can be, for example, a calcining temperature of 800 ° C. to 1200 ° C. and a holding time of 1 hour to 12 hours. The calcined body may be processed into a desired shape by cutting, grinding or the like. For example, instead of molding into the shape of the work piece 1 at the time of molding, the calcined body may be molded into the shape of the work piece 1 (the protrusion is molded) after the calcined body is manufactured. As a result, the workpiece 1 is manufactured.

Next, the holding member 2 is prepared. The method for producing the holding member 2 is not particularly limited. For example, the holding member 2 can be manufactured by injection molding, extrusion molding, cutting (cutting molding), or the like. In the case of the ring-shaped holding member 2, for example, the holding member 2 is heated and expanded. The heating temperature of the holding member 2 can be appropriately set according to the material of the holding member 2. For example, when the holding member 2 is an engineering plastic, the heating temperature of the holding member 2 is preferably 60 ° C. or higher, and more preferably 80 ° C. or higher. The heating temperature of the holding member 2 is preferably 150 ° C. or lower, and can be, for example, 120 ° C. or lower or 100 ° C. or lower. Next, in the expanded state of the holding member 2, the workpiece 1 is fitted into the holding member 2 so that the protruding portion 1c comes into contact with the holding member 2. Then, the holding member 2 and the protruding portion 1c are aligned to cool the holding member 2. The holding member 2 shrinks when cooled. As a result, the holding member 2 is attached to the workpiece 1 (so-called shrink fitting method). According to this method, the holding member 2 can be attached to the workpiece 1 without using an adhesive.

4 and 5 show a schematic cross-sectional view of the machined unit showing an example of the machined unit after the machined body 1 is machined. FIG. 5 is a schematic partial cross-sectional view of the protruding portion and the holding member portion. The work piece 4 is formed by mounting the work unit 10 on a machining apparatus and cutting the work piece 1 or the like. The work piece 4 can be machined in a state of being connected to the outer edge portion 1h while leaving the outer edge portion 1h of the workpiece 1 in a frame shape. The processed product 4 is, for example, a dental product as described above. By forming the work piece 4, the machined body 1 is formed with a machined cutting portion 5. The outer edge portion 1h is formed along the outer peripheral portion 1g by forming the workpiece 4 and the cutting portion 5. The outer edge portion 1h is a processing allowance and acts as a frame of the processed product 4. The work piece 4 is connected to at least one of the outer edge portion 1h and the protruding portion 1c by the connecting portion 4a. After processing, as shown in FIGS. 4 and 5, a cutting portion 5 obtained by cutting the workpiece 1 is formed up to the vicinity of the outer edge of the workpiece 1, and the width w3 of the outer edge portion 1h of the workpiece 1 becomes thin. According to the machined unit 10 of the present disclosure, even if the width w3 of the outer edge portion 1h does not provide sufficient strength, the outer edge portion of the workpiece 1 has the width of the protruding portion 1c (white arrow). 1h can be reinforced. That is, the thickness of the outer edge portion of the workpiece 1 can be partially secured by the protruding portion 1c. As a result, damage to the workpiece 1 can be suppressed even when an impact is applied to the workpiece 1 after processing. Further, by providing the protruding portion 1c, it is possible to increase the allowable range of misalignment in mounting the unit 10 to be processed on the processing apparatus.

Further, the holding portion held by the processing apparatus is not formed by the work piece 1 itself, but is replaced by the holding member 2, so that the work piece 1 is manufactured by the width of the holding member 2. Can be reduced, so that the amount of raw material used in the workpiece 1 can be reduced. When the cost of the work piece 1 is higher than the cost of the holding member 2, the manufacturing cost of the work unit 10 and the work piece 4 can be reduced.

In the first embodiment, no adhesive is used for attaching the holding member 2. Therefore, even when exposed to a high temperature after processing, stress is applied from the holding member 2 to the workpiece 1 due to the difference between the coefficient of thermal expansion of the workpiece 1 and the coefficient of thermal expansion of the holding member 2. It is possible to prevent the workpiece 1 after processing from being damaged. Further, when it is desired to remove the holding member 2 from the workpiece 1 after processing, the holding member 2 can be easily removed.

The unit to be processed according to the second embodiment of the present disclosure will be described. FIG. 6 shows a schematic partial cross-sectional view of the unit to be processed according to the second embodiment.

In addition to the configuration according to the first embodiment, the work unit 20 further includes an adhesive material 3 for joining the work piece 1 and the holding member 2. That is, the workpiece 1 and the holding member 2 are at least partially joined by the adhesive material 3. The adhesive 3 is preferably arranged within the thickness range of the protrusion 1c and the holding member 2. The material of the adhesive material 3 is preferably a material that does not cause a misalignment between the workpiece 1 and the holding member 2. As the adhesive material 3, for example, a thermosetting resin, a photocurable resin, or the like can be used.

The manufacturing method of the unit 20 to be processed can be the same as the manufacturing method according to the first embodiment. However, in the second embodiment, the workpiece 1 and the holding member 2 can be joined by the adhesive material 3. Therefore, the second embodiment can be preferably applied when a holding member to which the shrink fitting method cannot be applied is used.

The other embodiments in the second embodiment are the same as those in the first embodiment. The second embodiment can be combined with at least one of the above embodiments to the extent possible.

Also the second embodiment, it is possible to obtain the reinforcing effect of the same protruding portion 1 c of the first embodiment.

The unit to be processed according to the third embodiment of the present disclosure will be described. FIG. 7 shows a schematic partial cross-sectional view of the unit to be processed according to the third embodiment.

In the first and second embodiments, the holding member is arranged so as to cover the fifth surface of the protrusion. In the unit 30 to be processed according to the third embodiment, the holding member 32 is arranged so as to cover not only the fifth surface 1f of the protrusion 1c but also at least a part of the third surface 1d and the fourth surface 1e. .. That is, the holding member 32 can have a groove on the work piece 1 side. The holding member 32 can be arranged so as to fit the protruding portion 1c into the groove portion.

The width w4 of the protruding portion 1c is preferably the same as the width w1 in the first embodiment. The width (w4 + w5) of the holding member 32 is preferably the same as the width (w1 + w2) in the first embodiment.

The thickness t4 of the protrusion 1 c, in order to ensure the strength, if it is 1mm or more preferred. The thickness t5 of the holding member 32 is preferably equal to or less than the thickness of the workpiece 1 in order to be held by the processing apparatus.

The unit to be processed 30 can be manufactured in the same manner as in the first embodiment.

The other embodiments in the third embodiment are the same as those in the first embodiment. The third embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the third embodiment, the same effect as that of the first embodiment can be obtained.

The unit to be processed according to the fourth embodiment of the present disclosure will be described. FIG. 8 shows a schematic partial cross-sectional view of the unit to be processed according to the fourth embodiment.

The fourth embodiment is the same as the third embodiment. In the third embodiment, the holding member is attached to the workpiece without using the adhesive, but in the unit 40 according to the fourth embodiment, the holding member 32 uses the adhesive 3 to be the workpiece. It is attached to 1. The place where the adhesive material 3 is arranged is not limited to the illustrated form, and may be any place where the holding member 32 and the workpiece 1 can be joined.

The unit to be machined 40 can be manufactured in the same manner as in the first and second embodiments.

The other embodiments in the fourth embodiment are the same as those in the first and third embodiments. The fourth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the fourth embodiment, it is possible to obtain the reinforcing effect of the same protruding portion 1 c of the first embodiment.

The unit to be processed according to the fifth embodiment of the present disclosure will be described. FIG. 9 shows a schematic partial cross-sectional view of the unit to be processed according to the fifth embodiment.

In the third and fourth embodiments, the holding member is arranged so as to cover the third to fifth surfaces of the protrusion. In the unit 50 to be processed according to the fifth embodiment, the holding member 52 is arranged so as to cover the fifth surface 1f of the protrusion 1c and one of the third surface 1d and the fourth surface 1e. .. In the form shown in FIG. 9, the holding member 52 is arranged so as to cover the third surface 1d and the fifth surface 1f of the protrusion 1c.

The holding member 52 has a first surface 52a facing in the same direction as the second surface 1b and the fourth surface 1e of the workpiece 1. The holding member 52 is arranged so that the first surface 52a forms the same surface as the fourth surface 1e of the protrusion 1c, or exists on the second surface 1b side of the fourth surface 1e of the protrusion 1c. Is preferable. This is to stabilize the attachment of the unit to be machined 50 to the machining apparatus.

The width w6 of the protruding portion 1c is preferably the same as the width w1 in the first embodiment. The width (w6 + w7) of the holding member 52 is preferably the same as the width (w1 + w2) in the first embodiment.

The thickness t6 of the protrusion 1 c, in order to ensure the strength, if it is 1mm or more preferred. The thickness t7 of the holding member 52 is preferably equal to or less than the thickness of the workpiece 1 in order to be held by the processing apparatus.

The holding member 52 is preferably arranged at the center in the thickness direction of the workpiece 1. In this case, the position of the protruding portion 1c can be shifted from the center of the workpiece 1 in the thickness direction.

The unit to be machined 50 can be manufactured in the same manner as in the first embodiment.

The other embodiments in the fifth embodiment are the same as those in the first embodiment. The fifth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the fifth embodiment, the same effect as that of the first embodiment can be obtained.

The unit to be processed according to the sixth embodiment of the present disclosure will be described. FIG. 10 shows a schematic partial cross-sectional view of the unit to be processed according to the sixth embodiment.

The sixth embodiment is the same as the fifth embodiment. In the fifth embodiment, the holding member is attached to the work piece without using an adhesive, but in the work unit 60 according to the sixth embodiment, the holding member 52 uses the adhesive material 3 to work. It is attached to 1. The place where the adhesive material 3 is arranged is not limited to the illustrated form, and may be any place where the holding member 52 and the workpiece 1 can be joined.

The unit to be machined 60 can be manufactured in the same manner as in the first, second and fifth embodiments.

The other embodiments in the sixth embodiment are the same as those in the first and fifth embodiments. The sixth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the sixth embodiment, it is possible to obtain the reinforcing effect of the same protruding portion 1 c of the first embodiment.

The unit to be processed according to the seventh embodiment of the present disclosure will be described. FIG. 11 shows a schematic partial cross-sectional view of the unit to be processed according to the seventh embodiment. FIG. 12 shows a schematic partial plan view of the unit to be processed according to the seventh embodiment. FIG. 12 is a plan view seen from the side surface side of the workpiece.

The seventh embodiment is the same as the third and fourth embodiments. In the third and fourth embodiments, the holding member is one component. In the machined unit 70 according to the seventh embodiment, the holding member 72 is composed of two or more parts. In the embodiment shown in FIGS. 11 and 12, the holding member 72 has a first portion 72a that covers the third surface 1d of the protrusion 1c and a second portion 72b that covers the fourth surface 1e of the protrusion 1c. .. The fifth surface 1f of the protrusion 1c is covered with the first portion 72a and the second portion 72b. The first portion 72a and the second portion 72b each have at least one concave portion and a convex portion on the side of the protruding portion 1c facing the fifth surface 1f. The first portion 72a and the second portion 72b are arranged so that the concave portion and the convex portion are fitted on the fifth surface 1f surface side of the protruding portion 1c. In the form shown in FIG. 12, the boundary line between the first part 72a and the second part 72b has a meander shape.

It is preferable that the regions in which the concave portions and the convex portions are formed have the same shape in the first portion 72a and the second portion 72b. It is more preferable that the first part 72a and the second part 72b have the same shape as a whole. It is more preferable that the first part 72a and the second part 72b are the same parts. In this case, the manufacturing and management of the holding member 72 can be simplified.

The unit 70 to be machined can be manufactured in the same manner as in the first embodiment except that a plurality of parts are combined to form a holding member 72.

The other embodiments in the seventh embodiment are the same as those in the first embodiment. The seventh embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the seventh embodiment, the same effect as that of the first embodiment can be obtained. By providing unevenness on each part of the holding member 72, it is possible to prevent misalignment of each part. By forming the holding member 72 into a plurality of parts, it is possible to facilitate the attachment of the holding member 72 to the workpiece 1.

The unit to be processed according to the 14th embodiment of the present disclosure will be described. FIG. 13 shows a schematic partial cross-sectional view of the unit to be processed according to the 14th embodiment.

The 14th embodiment is the same as the 7th embodiment. In the seventh embodiment, the holding member was attached to the work piece without using an adhesive, but in the work unit 80 according to the fourteenth embodiment, the holding member 72 uses the adhesive material 3 to work. It is attached to 1. The place where the adhesive 3 is arranged is not limited to the illustrated form, and may be any place where the holding member 72 and the workpiece 1 can be joined.

The unit to be machined 80 can be manufactured in the same manner as in the first, second and seventh embodiments.

The other embodiments in the 14th embodiment are the same as those in the 1st and 7th embodiments. The fourteenth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the 14th embodiment, the same reinforcing effect by the protruding portion as in the 1st embodiment can be obtained.

The unit to be processed according to the ninth embodiment of the present disclosure will be described. FIG. 14 shows a schematic partial cross-sectional view of a holding member portion in the unit to be processed according to the ninth embodiment.

In the ninth embodiment, in addition to the configurations of the first to fourth embodiments, the workpiece 91 and the holding member 92 further have a positioning portion.

In the machined unit 90, the machined body 91 has at least one first positioning portion 91h at a portion of the protruding portion 91c facing the holding member 92. In the form shown in FIG. 14, the first positioning portion 91h is arranged on the fifth surface 91f of the protruding portion 91c. The holding member 92 has at least one second positioning portion 92d in a portion of the inner peripheral portion 92c facing the workpiece 91. The first positioning unit 91h and the second positioning unit 92d are portions for determining the position of the holding member 92 with respect to the workpiece 91. The first positioning unit 91h and the second positioning unit 92d can also prevent the holding member 92 from being displaced with respect to the workpiece 91.

The first positioning unit 91h and the second positioning unit 92d can be arranged at positions corresponding to each other. The first positioning unit 91h and the second positioning unit 92d can have shapes corresponding to each other. For example, it is preferable that the first positioning unit 91h and the second positioning unit 92d have a position and shape such that at least a part of one of them fits into the other. In the form shown in FIG. 14, the first positioning portion 91h is formed as a recess. The second positioning portion 92d is formed as a convex portion that fits into the concave portion of the first positioning portion 91h. The positions of the first positioning portion 91h and the second positioning portion 92d may be any portion as long as the outer peripheral portion 91g of the workpiece 91 and the inner peripheral portion 92c of the holding member 92 face each other.

It is preferable that at least a part of the tip of the convex portion can be inserted into the concave portion. The convex portion preferably has a shape and size that abuts on the opening and / or inner wall of the concave portion when inserted into the concave portion. For example, if the width of the convex portion (for example, the size in the direction (vertical direction) connecting the first surface 91a and the second surface 91b of the workpiece 91) is larger than the width of the concave portion (size in the vertical direction). preferable. As a result, the displacement of the holding member 92 with respect to the workpiece 91 can be suppressed by fitting or engaging the first positioning portion 91h and the second positioning portion 92d.

15 to 18 are schematic plan views showing an example of the first positioning unit 91h and the second positioning unit 92d. Although the plan view of the first positioning unit 91h is shown in FIGS. 15 to 18, the second positioning unit 92d also has a plan shape corresponding to the shape of the first positioning unit 91h. The illustration and description of the second positioning unit 92d will be omitted. The first positioning portion 91h can be formed as, for example, a continuous groove portion as shown in FIGS. 15 and 16. The first positioning portion 91h may be a linear groove portion as shown in FIG. 15, or may be a zigzag-shaped or meander-shaped groove portion as shown in FIG. The first positioning portion 91h is formed as, for example, at least one partial or discontinuous point-shaped recess (for example, a weight or columnar shape) or a fragmentary groove as shown in FIGS. 17 and 18. Can be done. The dotted line by the first positioning unit 91h may be a straight line as shown in FIG. 17, or may be a zigzag shape or a meander shape as shown in FIG. Although FIGS. 15 to 18 show the first positioning unit 91h having a regular shape, the first positioning unit 91h may have an irregular shape.

In the form shown in FIG. 14, the first positioning portion 91h and the second positioning portion 92d have one triangular cross section, but the first positioning portion 91h and the second positioning portion 92d have other cross-sectional shapes. Can have. 19 to 22 show schematic partial cross-sectional views showing examples of the first positioning unit 91h and the second positioning unit 92d. For example, the first positioning unit 91h and the second positioning unit 92d can have a polygonal cross section such as a quadrangle as shown in FIG. As shown in FIG. 20, the first positioning portion 91h can have a cross-sectional shape (hemispherical shape) such as a semicircular shape or a semi-elliptical shape. On the other hand, the second positioning unit 92d may have a semicircular or semi-elliptical cross-sectional shape (hemispherical shape) similar to that of the first positioning unit 91h, and as shown in FIG. It may have a shape different from that of the positioning portion 91h (triangular shape in FIG. 20). As shown in FIG. 21, a part of the second positioning portion 92d may engage with the first positioning portion 91h. In the form shown in FIG. 21, the width w22 of the second positioning unit 92d is equal to or larger than the width w21 of the first positioning unit 91h. A part of the second positioning unit 92d is inserted into the first positioning unit 91h, and the first positioning unit 91h and the second positioning unit 92d are partially in contact with each other at the upper and lower ends of the first positioning unit 91h. In this case, the outer peripheral portion 91g of the workpiece 91 and the inner peripheral portion 92c of the holding member 92 may not come into contact with each other. Alternatively, as shown in FIG. 21, the holding member 92 may be deformed due to its contraction, and may partially come into contact with the outer peripheral portion 91g of the workpiece 1 at the upper and lower ends of the inner peripheral portion 92c. Further, as shown in FIG. 22, in one cross section, the first positioning portion 91h and the second positioning portion 92d may have a plurality of concave portions or convex portions.

The depth and / or height of the first positioning unit 91h and / or the second positioning unit 92d is a depth and / or height at which the first positioning unit 91h and the second positioning unit 92d can engage with each other. preferable. The depth and / or height of the first positioning unit 91h and / or the second positioning unit 92d can be, for example, 0.5 mm or more.

The manufacturing method of the unit 40 to be processed can be the same as the manufacturing method according to the first embodiment.

The shape of the projecting portion and the holding member can be the same as that shown in FIGS. 7 to 13. 23 to 26 show another example of the protrusion and the holding member.

In the unit 100 to be processed shown in FIG. 23, the holding member 102 is arranged so as to cover not only the fifth surface 91f of the protrusion 91c but also at least a part of the third surface 91d and the fourth surface 91e. That is, the holding member 102 can have a groove portion for accommodating the protruding portion 91c on the work piece 91 side. The holding member 102 can be arranged so that the protruding portion 91c is fitted in the groove portion. The form of the first positioning unit 91h and the second positioning unit 102a can be the same as the above-described form.

In the unit 110 to be processed shown in FIG. 24, the holding member 112 can be arranged so as to cover the fifth surface 91f of the protrusion 91c and one of the third surface 91d and the fourth surface 91e. .. In the form shown in FIG. 24, the holding member 112 is arranged so as to cover the third surface 91d and the fifth surface 91f of the protrusion 91c.

The holding member 112 has a first surface 112a facing in the same direction as the second surface 91b and the fourth surface 91e of the workpiece 91. The holding member 112 is arranged so that the first surface 112a forms the same surface as the fourth surface 91e of the protrusion 91c, or exists on the second surface 91b side of the fourth surface 91e of the protrusion 91c. Is preferable. This is to stabilize the attachment of the unit to be machined 110 to the machining apparatus. The form of the first positioning unit 91h and the second positioning unit 112b can be the same as the above-described form. The holding member 112 is preferably arranged at the center in the thickness direction of the workpiece 91. In this case, the position of the protruding portion 91c can be shifted from the center of the workpiece 91 in the thickness direction.

In the machined unit 120 shown in FIGS. 25 and 26, the holding member 122 is composed of two or more parts. FIG. 26 is a plan view of the holding member 122 as viewed from the side surface side. In the embodiment shown in FIGS. 25 and 26, the holding member 122 has a first portion 122a that covers the third surface 91d of the protrusion 91c and a second portion 122b that covers the fourth surface 91e of the protrusion 91c. .. The fifth surface 91f of the protrusion 91c is covered with the first portion 122a and the second portion 122b. The first portion 122a and the second portion 122b each have at least one engaging portion on the side of the protruding portion 91c facing the fifth surface 91f. For example, the first portion 122a and the second portion 122b are arranged so that the concave portion and the convex portion are fitted on the fifth surface 91 f side of the protruding portion 91c. In the form shown in FIG. 26, the boundary line between the first part 122a and the second part 122b has a meander shape. The form of the first positioning unit 91h and the second positioning unit 122c can be the same as the above-described form.

According to the modes shown in FIGS. 25 and 26, by providing engaging portions in each portion of the holding member 122, it is possible to prevent misalignment of each portion. By forming the holding member 122 into a plurality of parts, it is possible to facilitate the attachment of the holding member 122 to the workpiece 91.

The forms other than the above in the ninth embodiment can be the same as those in the first to fourth embodiments. The ninth embodiment can be combined with at least one of the above embodiments to the extent possible.

Also in the ninth embodiment, the workpiece 91 and the holding member 92 can be joined with an adhesive in the same manner as in the above embodiment (not shown).

In each embodiment of the ninth embodiment, the first positioning portion of the workpiece is on the fifth surface of the protruding portion, but the first positioning portion is among the third and fourth surfaces of the protruding surface. It can also be placed in at least one of. The second positioning unit can be arranged at a position corresponding to the first positioning unit.

According to the ninth embodiment, the same effect as that of the first to fourteenth embodiments can be obtained.

According to the ninth embodiment, the holding member can be attached to an appropriate position with respect to the work piece by combining the first positioning portion and the second positioning portion. Further, even after the holding member is attached to the workpiece, the first positioning portion and the second positioning portion play a role of preventing slipping, and the displacement of the holding member with respect to the workpiece can be suppressed.

The unit to be processed according to the tenth embodiment of the present disclosure will be described. FIG. 27 shows a schematic partial cross-sectional view of the unit to be processed according to the tenth embodiment.

In the ninth embodiment, the first positioning portion of the workpiece is a concave portion, and the second positioning portion of the holding member is a convex portion. In the tenth embodiment, the concave portion and the convex portion are reversed between the workpiece 131 and the holding member 132. That is, the first positioning portion 131h arranged on the fifth surface 131f of the protruding portion 131c of the workpiece 131 is a convex portion. The second positioning portion 132d arranged on the inner peripheral portion 132c of the holding member 132 is a recess corresponding to the first positioning portion 131h.

The manufacturing method of the unit 130 to be processed can be the same as the manufacturing method according to the first embodiment.

The forms other than the above in the tenth embodiment can be the same as those in the first to ninth embodiments. The tenth embodiment can be combined with at least one of the above embodiments to the extent possible.

Also in the tenth embodiment, the workpiece 131 and the holding member 132 can be joined with an adhesive in the same manner as in the above embodiment (not shown).

According to the tenth embodiment, the same effect as that of the first to ninth embodiments can be obtained.

The unit to be processed according to the eleventh embodiment of the present disclosure will be described. In the eleventh embodiment, the workpiece has a plurality of components. FIG. 28 shows a schematic plan view of the unit to be processed according to the eleventh embodiment. FIG. 29 shows a schematic cross-sectional view of the unit to be processed in line XXVIII-XXVIII of FIG. 28.

In the work unit 140, the work piece 141 is physically divided into a plurality of compartments 142. One workpiece 141 is configured by combining a plurality of compartments 142. Of the plurality of compartments 142, at least two compartments 142 can have different compositions. For example, each compartment 142 can contain a different colorant. Of the plurality of compartments 142, at least two compartments 142 can have the same composition, and all compartments 142 may have the same composition. The main material of each compartment 142 may be the same or different. One compartment 142 is preferably smaller than the size that can be held or fixed in the processing apparatus.

At least one of the plurality of compartments 142 can be a portion processed by a processing apparatus. At least one of the plurality of compartments 142 can be a portion that is not processed by the processing apparatus. At least one of the plurality of compartments 142 can be a dummy work piece for compensating for the size of the work piece 141 and making the work piece 141 a size that can be held in the processing apparatus.

It is preferable that the workpiece 141 is divided by each section 142 so as to divide the first surface 141a and the second surface 141b of the workpiece 141. The number of compartments 142 for one workpiece 141 can be set as appropriate. The size of one compartment 142 can be appropriately adjusted according to the demand for each composition and the like. The plurality of compartments 142 may have different sizes or may have the same size.

At least one compartment 142 can have at least a portion of the protrusion 141c of the workpiece 141. The form of the protruding portion 141c can be the same as that of the above embodiment. By combining the plurality of compartments 142, the protrusions 141c can be made continuous.

The shape of each compartment 142 may be any shape. The plurality of compartments 142 may have different shapes or may have the same shape. When the planar shape of the workpiece 141 is circular, it is preferable to divide the workpiece 141 so that the compartment 142 passes through the center of the circle. For example, the compartment 142 can have a fan-shaped planar shape. When the compartment 142 has a sector shape, it is preferable that the radius of the fan shape is the same. As a result, a plurality of sections 142 can be radially combined so that the arcs are continuous to form a workpiece 141 having a circular or elliptical shape. The total central angle of the plurality of compartments 142 is preferably 360 °. The size of the central angle of each sector may be any, for example, 45 °, 60 °, 90 °, 120 °, 180 ° (ie, semicircle, semi-ellipse, etc.), 240 °, 270 °, 300. It can be °, 315 °, etc.

It is preferable that the plurality of compartments 142 have the same thickness. As a result, both the first surface 141a and the second surface 141b can be formed into a flat surface. Further, when the unit 140 to be processed is fixed to the processing apparatus, the alignment in the thickness direction becomes easy.

In the embodiment shown in FIGS. 28 and 29, the workpiece 141 has a first compartment 142a, a second compartment 142b, and a third compartment 142c. The first compartment 142a, the second compartment 142b, and the third compartment 142c have the same shape. The first compartment 142a, the second compartment 142b, and the third compartment 142c have the same size. The first compartment 142a, the second compartment 142b, and the third compartment 142c have a fan-shaped planar shape on both sides. The central angle of the sector is 120 °. The first compartment 142a, the second compartment 142b, and the third compartment 142c are arranged radially to form a circular workpiece 141. Both sides of the first section 142a, the second section 142b, and the third section 142c are arranged on the same surface, and the first surface 141a and the second surface 141b are formed in a plane.

30 to 33 show a schematic plan view of the workpiece showing an example of the plan shape of the section. 30 to 33 show a state in which the sections constituting one work piece are separated. In the form shown in FIG. 30, the compartments 142a, 142b, 142c have a fan-shaped planar shape with a central angle of 120 °. In the form shown in FIG. 31, the compartments 142a and 142b have a semicircular planar shape. In the form shown in FIG. 32, the compartment 142a has a semicircular planar shape, and the compartments 142b and 142c have a fan-shaped planar shape with a central angle of 90 °. In the modes shown in FIGS. 30 to 32, the radii of each section have the same size. In the form shown in FIG. 33, the compartments 142a to 142 do not have a fan-shaped planar shape, but are configured to form a circle in combination.

FIG. 34 shows a schematic plan view of the work piece showing another form of the work piece. In the adjacent compartments 142, the compartments 142 may be in direct contact with each other. Alternatively, as shown in FIG. 34, the workpiece 141 may further have cushioning material 143 in at least a part between adjacent compartments 142. The cushioning material 143 is preferably a material capable of absorbing the unevenness of the end surface of the compartment 142. The cushioning material 143 may be an adhesive that joins the compartments 142 to each other. For example, a resin sheet can be used as the cushioning material 143. In the form shown in FIG. 34, the cushioning material 143 is entirely arranged between the compartments 142, but the cushioning material 143 may be partially arranged between the compartments 142. By using the cushioning material 143, it is possible to suppress the inconsistency of the combination due to the unevenness of the end face of the compartment 142. Further, by using the adhesive material as the cushioning material 143, the bonding strength between the compartments 142 can be increased.

FIG. 35 shows a schematic side view of the work piece showing another form of the work piece. The compartment 142 may have an engaging portion that engages with the adjacent compartment 142 at the end face facing the adjacent compartment 142. As shown in FIG. 35, the engaging portion can be, for example, a concave portion 142g formed on the end face of the compartment 142a and a convex portion 142h formed on the end face of the compartment 142b and fitted with the concave portion 142g. The workpiece 141 may further have a cushioning material 143 as shown in FIG. 34 in addition to the engaging portion. By providing the engaging portion, the joint strength between the compartments 142 can be increased.

When the section 142 is a section that is not processed (dummy work piece), the material of the section 142 that is not processed is a section that can hold the unit 140 to be processed in the processing apparatus and is processed. Any material having the strength to process 142 can be used.

The other embodiments in the eleventh embodiment can be the same as those in the first to tenth embodiments. The eleventh embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the eleventh embodiment, the same effect as that of the first to tenth embodiments can be obtained.

According to the eleventh embodiment, the workpiece can include a plurality of compartments having different compositions. The size and shape of each compartment can be adjusted according to demand. As a result, it is possible to improve the utilization efficiency of the workpiece and reduce the waste of the workpiece. It is also possible to manufacture and sell the workpiece in units of sections. Further, processed products having different compositions can be produced by one processing by a processing device.

The unit to be processed according to the twelfth embodiment of the present disclosure will be described. FIG. 36 shows a schematic plan view of the unit to be processed according to the twelfth embodiment. FIG. 37 shows a schematic plan view of the compartment unit according to the twelfth embodiment. In the eleventh embodiment, one holding member is applied to the compartment. In the twelfth embodiment, a part of the holding member is arranged for each section.

The unit to be processed 150 according to the twelfth embodiment includes a plurality of compartment units 151. Each compartment unit 151 has a compartment 142 and a covering member 152 arranged on at least a part of the side surface of the compartment 142. The compartment 142 can be similar to the compartment of the eleventh embodiment. The size of one compartment unit 151 can be smaller than the size that can be held in the processing apparatus.

In the form shown in FIG. 37, the covering member 152 surrounds the outer peripheral portion (side surface) of the compartment 142. The covering member 152 can be the same as the holding member in the first to eleventh embodiments except that it surrounds one section. The covering member 152 forms a holding member held by the processing apparatus when the unit to be processed 150 is formed by combining a plurality of partition units 151. A part of one covering member 152 constitutes a part of a holding member. By combining the plurality of compartment units 151, a holding member is formed in which a part of the covering member 152 continuously surrounds the combination of the compartments 142. For example, when the compartment 142 is fan-shaped, the portion of the covering member 152 arranged in the arc portion of the compartment 142 constitutes the holding member. The portion of the covering member 152 that does not form a holding member can act as a cushioning portion that facilitates joining with the adjacent section.

The compartment units 151 can be joined with an adhesive (not shown). Alternatively, an engaging portion for engaging the covering members 152 may be provided at a portion where the covering members 152 face each other.

FIG. 38 shows a schematic plan view of a compartment unit having a form different from that shown in FIG. 37. In the form shown in FIG. 37, the covering members are arranged over the entire circumference of the section. In the compartment unit 153 according to the form shown in FIG. 38, the covering member 154 is arranged only on a part of the side surface of the compartment 142. By combining the compartment units 153 in the same manner as in the combination shown in FIG. 36, a unit to be processed as shown in FIG. 28 can be formed. The covering member 154 is arranged in a portion that acts as a holding member when the partition units are combined. In the form shown in FIG. 38, the covering member 154 is arranged along the arc portion of the compartment 142. Of the side surfaces of the compartment 142, the covering member 154 is not provided on the portion of the side surface facing the adjacent compartment 142 when the compartment unit 153 is combined. The partition unit 153 shown in FIG. 38 is the same as the form of the partition unit shown in FIG. 37, except that the location of the covering member 154 is different.

The compartment units 153 can be joined with an adhesive (not shown). Alternatively, an engaging portion for engaging the compartments 142 with each other may be provided at a portion where the compartments 142 face each other.

The other embodiments in the twelfth embodiment can be the same as those in the first to eleventh embodiments. The twelfth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the twelfth embodiment, the same effect as that of the first to eleventh embodiments can be obtained. Since it can be manufactured or sold for each compartment unit, the user can manufacture or purchase a compartment unit according to demand and arbitrarily set the composition combination in the unit to be processed.

The unit to be processed according to the thirteenth embodiment of the present disclosure will be described. FIG. 39 shows a schematic plan view of the unit to be processed according to the thirteenth embodiment. FIG. 40 shows a schematic plan view of the dummy workpiece according to the thirteenth embodiment. In the twelfth embodiment, a plurality of compartmentalized units are combined to form a unit to be processed. In the thirteenth embodiment, one partition unit is used to form the unit to be machined 160.

The work unit 160 includes a partition unit 151 and a dummy work piece 161. The compartment unit 151 is the same as the compartment unit 151 according to the twelfth embodiment. The dummy workpiece 161 compensates for the size of the partition unit 151 so that the partition unit 151 can be held in the processing apparatus. The dummy workpiece 161 can have a holding portion 161a for holding in the processing apparatus. The holding portion 161a has the same function as the holding member. The holding portion 161a may be integrally formed as a part of the dummy workpiece 161 or may be formed of a separate member. In the form shown in FIGS. 39 and 40, the dummy workpiece 161 has a planar shape as if three partition units 151 are combined. In the form shown in FIGS. 39 and 40, the dummy workpiece 161 has a planar shape such that it forms a circular shape in combination with the partition unit 151.

The shape and size of the dummy workpiece 161 can be designed according to the shape and size of the partition unit 151. The dummy workpiece 161 has a thickness that can be held in the processing apparatus. The material of the dummy workpiece 161 may be any material as long as it can be held in the processing apparatus and the section can be processed. As the material of the dummy workpiece 161 for example, the same material as the holding member can be used.

The dummy workpiece 161 and the partition unit 151 can be joined by, for example, an adhesive (not shown). Alternatively, an engaging portion for engaging the dummy workpiece 161 and the partition unit 151 may be provided at a portion where the dummy workpiece 161 and the partition unit 151 face each other.

It is preferable that the dummy workpiece 161 can be used repeatedly. It is preferable that the partition unit 151 is removable from the dummy workpiece 161.

FIG. 41 shows a schematic plan view of a unit to be machined having a form different from that shown in FIG. 39. The work unit 163 includes a section (workpiece) 144, a dummy work piece 164 that holds the section 144, and an adhesive material 145 that joins the section 144 and the dummy work piece 164. The dummy workpiece 164 has an annular or tubular structure with an opening hollowed out to the size of the compartment 144. The dummy workpiece 164 can have a holding portion 164a for holding in the processing apparatus. In the form shown in FIG. 41, the compartments 144 are concentrically fitted into the openings of the dummy workpiece 164 and joined by the adhesive 145. The size (for example, radius) of the section 144 can be 80% or less, 60% or less, 50% or less, or 40% or less of the size (for example, radius) that can be held in the processing apparatus.

The dummy workpiece 164 is preferably strong enough not to be deformed during processing by a processing apparatus.

The forms other than the above in the thirteenth embodiment can be the same as those in the first to twelfth embodiments. The thirteenth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the thirteenth embodiment, the same effect as that of the first to twelfth embodiments can be obtained. It is not necessary to increase the work piece to a size that can be held in the processing apparatus. As a result, even a composition with low demand can be processed without requiring a workpiece having another composition.

The unit to be processed according to the 14th embodiment of the present disclosure will be described. In the eleventh embodiment, the compartments are physically separated from each other. In the fourteenth embodiment, at least two sections in the workpiece are not physically separated and can be integrally formed. The schematic plan view and schematic sectional view of the unit to be processed in the 14th embodiment can be the same as those in FIGS. 27 and 28.

Adjacent compartments 142 are preferably joined. Therefore, it is preferable that the material of the adjacent compartment 142 is a material that can be bonded by firing, and it is more preferable that the main material is the same. For example, the adjacent compartment 142 may be zirconia having a different type and / or content of an additive such as a colorant.

The manufacturing method of the unit to be processed according to the 14th embodiment is the same as the manufacturing method described in the above-described embodiment except that a plurality of sections are integrally molded. Regarding the molding of the work piece, first, a removable partition is provided in the mold to form a mold of a section having a desired shape. The partition will be located at the boundary of the compartment. The partition is then removed after supplying the composition to the area of each compartment. Next, the composition can be pressure-molded to form a molded product in which a plurality of compositions are integrated. The method after sintering the molded product is the same as that of the above embodiment.

The forms other than the above in the 14th embodiment can be the same as those in the 1st to 13th embodiments. The fourteenth embodiment can be combined with at least one of the above embodiments to the extent possible.

According to the 14th embodiment, the same effect as that of the 1st to 13th embodiments can be obtained. Further, a member for holding a plurality of sections, such as a holding member and an adhesive, becomes unnecessary.

The disclosure of the above patent documents shall be incorporated into this document by citation. The unit to be processed and the method for manufacturing the unit of the present invention are described based on the above-described embodiment, but the present invention is not limited to the above-described embodiment, and the framework of the entire disclosure (including claims and drawings) of the present invention. Within, and based on the basic technical idea of the present invention, various disclosure elements (including each element of each claim, each element of each embodiment or embodiment, each element of each drawing, etc.) It goes without saying that modifications, changes and improvements can be included. Further, within the framework of all disclosure of the present invention, various combinations / substitutions or substitutions of various disclosure elements (including each element of each claim, each element of each embodiment or embodiment, each element of each drawing, etc.) You can choose.

Further problems, purposes and developments of the present invention will also be clarified from all the disclosures of the present invention including the scope of claims.

Regarding the numerical range described in this document, it should be interpreted that any numerical value or small range included in the range is specifically described even if there is no other description.

A part or all of the above embodiments may be described as in the following appendix, but are not limited to the following description.

[Appendix 1]
With the work piece,
A unit to be machined, comprising a holding member arranged on at least a part of the outer peripheral portion of the work piece and in direct contact with at least a part of the outer peripheral portion.
[Appendix 2]
The unit to be processed according to the appendix, wherein the holding member is continuously arranged along the outer peripheral portion.
[Appendix 3]
The holding member is a unit to be processed according to the appendix, which has a ring shape.
[Appendix 4]
The unit to be processed according to the appendix, wherein the thickness of the holding member is thinner than the thickness of the work piece.
[Appendix 5]
The machined unit according to the appendix, wherein the holding member is arranged at the center in the thickness direction of the work piece.
[Appendix 6]
With the work piece,
A holding member arranged on at least a part of the outer peripheral portion of the work piece is provided.
The work piece has at least one first positioning portion at a portion facing the holding member.
The holding member is a unit to be processed, which has a second positioning portion that engages with at least a part of the first positioning portion.
[Appendix 7]
The first positioning portion has a concave or convex shape and has a concave or convex shape.
The second positioning portion has a shape that fits with the first positioning portion.
The unit to be processed according to the appendix, wherein at least a part of one of the first positioning portion and the second positioning portion is fitted with at least a part of the other.
[Appendix 8]
The unit to be machined according to the appendix, wherein the first positioning portion is arranged over the entire circumference of the work piece to be machined.
[Appendix 9]
The unit to be processed according to the appendix, wherein the first positioning portion or the second positioning portion has a groove shape.
[Appendix 10]
The unit to be processed according to the appendix, wherein the first positioning portion or the second positioning portion has a conical shape or a columnar shape.
[Appendix 11]
The workpiece has a protruding portion protruding from the outer peripheral portion, and has a protruding portion.
The first positioning portion is arranged on the protruding portion and is arranged.
The unit to be processed according to the appendix, wherein the holding member is arranged at least in the protruding direction of the protruding portion.
[Appendix 12]
The protrusions are continuously arranged along the outer peripheral portion of the workpiece.
The unit to be processed according to the appendix, wherein the holding member has a ring shape.
[Appendix 13]
The work piece has a first surface and a second surface arranged on the side opposite to the first surface.
The outer peripheral portion is arranged between the first surface and the second surface.
The protrusion is a fifth surface connecting a third surface facing the same direction as the first surface, a fourth surface facing the same direction as the second surface, and the third surface and the fourth surface. And have
The unit to be processed according to the appendix, wherein the holding member covers at least a part of the fifth surface. [Appendix 14]
The additional note, wherein the holding member has a first surface of the protrusion facing the same direction as the third surface and a second surface of the protrusion facing the same direction as the fourth surface. Work unit.
[Appendix 15]
The first surface of the holding member forms the same surface as the third surface of the protrusion, or exists on the first surface side of the workpiece with respect to the third surface of the protrusion. , The unit to be processed described in the appendix.
[Appendix 16]
The second surface of the holding member forms the same surface as the fourth surface of the protrusion, or exists on the second surface side of the workpiece with respect to the fourth surface of the protrusion. , The unit to be processed described in the appendix.
[Appendix 17]
The unit to be processed according to the appendix, wherein the holding member further covers at least a part of the third surface and the fourth surface of the protrusion.
[Appendix 18]
The machined unit according to the appendix, wherein the holding member is composed of two or more parts.
[Appendix 19]
Each part of the holding member has a concave portion or a convex portion, respectively.
The unit to be processed according to the appendix, wherein each of the parts is arranged so as to fit the concave portion and the convex portion.
[Appendix 20]
The unit to be processed according to the appendix, wherein the work piece is ceramic, metal or resin.
[Appendix 21]
The unit to be processed according to the appendix, wherein the work piece is a calcined body in which zirconia crystal particles have not been completely sintered.
[Appendix 22]
The unit to be processed according to the appendix, wherein the protruding portion is a part of the calcined body.
[Appendix 23]
The unit to be processed according to the appendix, wherein the holding member is joined to the object to be processed with an adhesive.
[Appendix 24]
The unit to be machined according to the appendix, wherein the holding member and the work piece are in direct contact with each other.
[Appendix 25]
The unit to be processed according to the appendix, wherein the holding member is plastic.
[Appendix 26]
The unit to be processed according to the appendix, wherein the thickness of the protruding portion and the thickness of the holding member are the same. [Appendix 27]
The unit to be processed according to the appendix, wherein the width of the protruding portion in the protruding direction is 0.3 mm to 2 mm.
[Appendix 28]
The machined unit according to the appendix, wherein the protruding portion is arranged at the center in the thickness direction of the work piece.
[Appendix 29]
The unit to be processed according to the appendix, wherein the workpiece is formed by processing the workpiece and has a workpiece connected to the protrusion or the outer edge of the workpiece.
[Appendix 30]
Equipped with a workpiece having multiple compartments,
The section is a unit to be processed that divides the surface to be processed of the workpiece.
[Appendix 31]
The unit to be processed according to the appendix, wherein the plurality of sections are integrally formed.
[Appendix 32]
The unit to be processed according to the appendix, wherein the plurality of sections have different compositions.
[Appendix 33]
The unit to be machined according to the appendix, further comprising a holding member that surrounds at least the outer peripheral portion of the work piece.
[Appendix 34]
The unit to be processed according to the appendix, wherein the work piece is divided into each section.
[Appendix 35]
The unit to be processed according to the appendix, wherein at least two of the plurality of compartments have different compositions.
[Appendix 36]
The unit to be processed according to the appendix, wherein the compartment has a shape that engages with an adjacent compartment.
[Appendix 37]
The unit to be processed according to the appendix, further comprising a cushioning material arranged between adjacent compartments.
[Appendix 38]
The unit to be processed according to the appendix, wherein the cushioning material contains a resin.
[Appendix 39]
The unit to be machined according to the appendix, further comprising a holding member that surrounds at least the outer peripheral portion of the work piece.
[Appendix 40]
The unit to be processed according to the appendix, wherein the holding member maintains a combination of the plurality of the compartments.
[Appendix 41]
The holding member is composed of a plurality of parts.
The unit to be processed according to the appendix, wherein the portion of the holding member is arranged in each section of the workpiece.
[Appendix 42]
The unit to be processed according to the appendix, further comprising a covering member surrounding the outer peripheral portion of the section. [Appendix 43]
The unit to be processed according to the appendix, wherein the portion of the holding member is at least a part of the covering member.
[Appendix 44]
The unit to be processed according to the appendix, wherein the covering member has a shape that engages with a covering member that surrounds an adjacent section.
[Appendix 45]
The unit to be processed according to the appendix, wherein the planar shape of the section has a fan shape.
[Appendix 46]
The unit to be machined according to the appendix, wherein the plurality of sections are combined to form the work piece having a circular planar shape.
[Appendix 47]
The unit to be processed according to the appendix, wherein the plurality of compartments each have the same shape.
[Appendix 48]
The unit to be processed according to the appendix, wherein one of the plurality of compartments is a portion that is not machined by a processing apparatus.
[Appendix 49]
The unit to be machined according to the appendix, wherein one said section is smaller than the size that can be fixed to the machining apparatus.
[Appendix 50]
The process of preparing the work piece and
The process of preparing a holding member with a ring shape and
The step of heating and expanding the holding member and
The process of fitting the workpiece into the ring of the holding member, and
A step of cooling and shrinking the holding member and attaching the holding member to the outer peripheral portion of the workpiece.
A method of manufacturing a unit to be processed, including.
[Appendix 51]
A process of preparing a work piece having a first positioning portion on the outer peripheral portion, and
The process of preparing the holding member having the second positioning portion and
A method for manufacturing a unit to be processed, which comprises a step of attaching the holding member to the outer peripheral portion of the workpiece so that the first positioning portion and the second positioning portion correspond to each other.
[Appendix 52]
The process of preparing multiple compartments that are the components of the work piece,
The work piece having a first surface, a second surface arranged on the side opposite to the first surface, and an outer peripheral portion between the first surface and the second surface by combining the plurality of the sections. And the process of forming
The process of preparing a holding member with a ring shape and
The step of heating and expanding the holding member and
The process of fitting the workpiece into the ring of the holding member, and
A step of cooling and shrinking the holding member and attaching the holding member to the outer peripheral portion of the workpiece.
A method of manufacturing a unit to be processed, including.
[Appendix 53]
The first positioning portion is a concave portion or a convex portion, and is
The method for manufacturing a unit to be processed according to the appendix, wherein the first positioning portion and the second positioning portion are fitted in the step of attaching the holding member.
[Appendix 54]
The step of attaching the holding member is
A step of heating and expanding the holding member having a ring shape,
The process of fitting the workpiece into the ring of the holding member, and
The process of cooling and contracting the holding member,
The method for manufacturing a unit to be processed, which is described in the appendix.
[Appendix 55]
The workpiece has a protruding portion protruding from the outer peripheral portion, and has a protruding portion.
The method for manufacturing a unit to be processed according to the appendix, wherein the first positioning portion is arranged on the protruding portion.
[Appendix 56]
The method for manufacturing a unit to be processed according to the appendix, wherein in the step of expanding the holding member, the holding member is heated to 60 ° C. to 150 ° C.
[Appendix 57]
The method for manufacturing a unit to be processed according to the appendix, wherein the holding member includes an engineering plastic.

The present disclosure can be applied, for example, to the production of dental prostheses.

10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 163 Work unit 1,91,131,141 Work piece 1a, 91a, 131a, 141a 1st surface 1b, 91b, 131b, 141b 2nd surface 1c, 91c, 131c, 141c Protruding parts 1d, 91d, 131d 3rd surface 1e, 91e, 131e 4th surface 1f, 91f, 131f 5th surface 1g , 91g, 131g Outer peripheral part 1h Outer edge part 2,32,52,72,92,102,112,122,132 Holding members 2a, 92a, 112a, 132a First surface 2b, 92b, 132b Second surface 2c, 92c, 132c 3rd surface (inner circumference)
3 Adhesive 4 Work piece 4a Connection part 5 Cutting part 52a 1st surface 72a 1st part 72b 2nd part 91h, 131h 1st positioning part 92d, 102a, 112b, 122c, 132d 2nd positioning part 122a 1st part 122b 1st Part 2 142, 144 Section 142a-142f 1st to 6th Section 142g Recessed 142h Convex 143 Cushioning material 145 Adhesive 151,153 Section unit 152,154 Covering member 161,164 Dummy workpiece 161a, 164a Holding part

Claims (25)

A work piece having a protruding part and
A holding member continuously arranged on the outside of the protrusion is provided.
The protrusion is made of the same material as the work piece and is integrated.
The work piece has a first surface, a second surface arranged on a side opposite to the first surface, and an outer peripheral portion between the first surface and the second surface.
The protruding portion is arranged on the outer peripheral portion, and is arranged on the outer peripheral portion.
The protrusions are continuously arranged along the outer peripheral portion of the workpiece .
The holding member is not arranged outside the portion other than the protruding portion on the outer peripheral portion of the workpiece.
The holding member is configured to be held by the processing apparatus.
Work unit. The work piece has a plate-like shape and has a plate-like shape.
The protruding portion protrudes from the side surface of the work piece,
The unit to be processed according to claim 1, wherein the holding member is arranged at least in the protruding direction of the protruding portion. The unit to be processed according to claim 1 or 2, wherein the holding member has a ring shape. The protrusion is a fifth surface connecting a third surface facing the same direction as the first surface, a fourth surface facing the same direction as the second surface, and the third surface and the fourth surface. And have
The unit to be processed according to any one of claims 1 to 3, wherein the holding member covers at least a part of the fifth surface. 4. The holding member has a first surface of the projecting portion facing in the same direction as the third surface and a second surface of the projecting portion facing in the same direction as the fourth surface of the projecting portion. The described unit to be processed. Wherein said retaining member first surface, you form the third surface and the same surface of the projecting portion, the machining unit according to claim 5. The second surface of the holding member, you forming the fourth surface and the same surface of the projecting portion, the machining unit according to claim 5 or 6. The work piece has at least one first positioning portion in a portion of the protruding portion facing the holding member.
The unit to be processed according to any one of claims 1 to 7 , wherein the holding member has a second positioning portion that engages with at least a part of the first positioning portion. The first positioning portion has a concave or convex shape and has a concave or convex shape.
The second positioning portion has a shape that fits or engages with the first positioning portion.
The unit to be processed according to claim 8 , wherein at least a part of the first positioning portion and the second positioning portion fits or engages with at least a part of the other. Of the first positioning portion and the second positioning portion, one has a concave shape and the other has a convex shape.
The width of the convex shape is equal to or larger than the width of the concave shape.
The unit to be processed according to claim 8 or 9 , wherein a part of the convex shape is inserted into the concave shape. The unit to be processed according to any one of claims 8 to 10 , wherein the first positioning unit is arranged over the entire circumference of the workpiece. The unit to be processed according to any one of claims 8 to 11 , wherein the first positioning portion or the second positioning portion has a groove shape. The unit to be processed according to any one of claims 8 to 11 , wherein the first positioning portion or the second positioning portion has a conical shape or a columnar shape. The unit to be processed according to any one of claims 1 to 13 , wherein the holding member is composed of two or more parts. Each part of the holding member has a concave portion or a convex portion, respectively.
The unit to be processed according to claim 14 , wherein each of the parts is arranged so as to fit the concave portion and the convex portion. The unit to be processed according to any one of claims 1 to 15 , wherein the work piece is ceramic, metal or resin. The unit to be processed according to any one of claims 1 to 16 , wherein the processed body is a calcined body in which zirconia crystal particles have not been completely sintered. The unit to be processed according to any one of claims 1 to 17 , wherein the holding member is joined to the object to be processed with an adhesive. The unit to be processed according to any one of claims 1 to 17 , wherein the holding member and the object to be processed are in direct contact with each other. The unit to be processed according to any one of claims 1 to 19 , wherein the holding member is plastic. The unit to be processed according to any one of claims 1 to 20 , wherein the thickness of the protruding portion and the thickness of the holding member are substantially the same. The unit to be processed according to any one of claims 1 to 21 , wherein the width of the protruding portion in the protruding direction is 0.3 mm to 2 mm. The machined unit according to any one of claims 1 to 22 , wherein the protruding portion is arranged at the center in the thickness direction of the work piece. The work piece according to any one of claims 1 to 23 , wherein the work piece is formed by processing the work piece and has a work piece connected to the protruding portion or the outer edge portion of the work piece. Processing unit. The work piece is any one of claims 1 to 24 , wherein the work piece is produced by press-molding a composition for the work piece into a shape forming the work piece. The unit to be processed described in the section.